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Marquise|Natural|IGI

0.31ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 810631802

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 810631802

Diamond specifications and retailer prices

From $272 CAD
₹18,522 INR
As of October 31, 2026
Save $614 CAD (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $885 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 810631802. Listed at 8 retailers as of October 29, 2026, with prices from $272 to $885, a $614 spread on the same certified stone. MOH London lists it at $885. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.31
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle32°
Pavilion angle39°
OriginNatural
Grading LabIGI
CertificateIGI 810631802
Dimensions7.12 × 3.60 × 2.12 mm
L/W Ratio1.98
Girdle conditionFaceted
Culet sizeNone
Top View
7.12 mm3.60 mm0.31 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 810631802
Side View
Table 57.0%Crown 32°Girdle: MED-THKPavilion 39°Culet: NoneDepth 58.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $885 CAD|Low: $272 CAD|High: $891 CAD|Avg: $558 CAD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 2$272 CAD
Retailer 6$411 CAD
Retailer 3$501 CAD
Retailer 5$591 CAD
Retailer 7$622 CAD
Retailer 4$653 CAD
MOH London$885 CAD

44 data points across 7 retailers

8 retailers$272 CAD to $885 CAD

A
Cheapest Retailer
-
$272 CAD
₹18,522 INR
B+
Retailer 2
-
$411 CAD
$294 USD
View
B
Retailer 3
-
$501 CAD
£282 GBP
View
B
Retailer 4
-
$563 CAD
$403 USD
View
B
Retailer 5
-
$591 CAD
ZAR 6,832 ZAR
View
B
Retailer 6
-
$622 CAD
$445 USD
View
B
Retailer 7
-
$653 CAD
€445 EUR
View
Most Expensive
C
MOH London
17B5F47BD · Oct 29
$885 CAD
£499 GBP
View
7 more retailers have this diamond
Prices start from $272 CADSave up to $614 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.31ct Marquise
$272 CAD